Automatic advertising apparatus



2 SheetsSheet 1. S. YULE. AUTOMATIC ADVERTISING APPARATUS. No. 484,576.

(No Model.)

Patented Oct: 18,1892

(No Model.) 2 Sheets-Sheet 2.

J S. YULE. AUTOMATIC ADVERTISING APPARATUS.

No. 484,576. Patented 00's. 18, 1892.

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Darren Srnrns JOHN STIRLING YULE, OF GLASGOTV, SCOTLAND.

AUTOMATIC ADVERTISING APPARATUS.

SPECIFICATION forming part of Letters Patent \To. 484,576, dated October18, 1892. Application filed September 11, 1891. Serial No. 405,441. (Nomodel.) Patented in England July 18, 1891,1I0. 12,225.

To coZZ whom it Huey concern.-

Be it known that I, J OHN STIRLING YULE, commission agent, a citizen ofthe United Kingdom of Great Britain and Ireland, residing at 139 WestGeorge Street, Glasgow, in the county of Lanark, Scotland, have inventednew and useful Improvements in Apparatus for Automatically DisplayingAdvertisements, Pictures, and the Like, (which have not been patented inany country except Great Britain by Letters Patent, dated July 18, 1891,No. 12,225,) and I do hereby declare that the following is a full,clear, and exact description of the invention, which will enable othersskilled in the art or manufacture to which it relates to make and usethe same.

This invention relates to apparatus for antomaticallydisplayingadvertisements, photo graphs, or other pictures and for likepurposes; and the improvements have for their object the provision, inconjunction with ordinary clockwork mechanism and with one or morerollers or drums whereon the matter to be displayed is contained, of aneseapement which shall automatically and at any desired intervals causethe roller or rollers to be partially rotated and so as to display ateach such partial rotation a different subject-matter. In theaccompanying drawings, forming part of this specification, and whereinlike parts are indicated by like letters of reference in the severalviews, Figure 1 is a fragmentary view in elevation, partly in section,of an apparatus embodying my invention. Fig. 2 is a similar view atright angles to Fig. 1. Fig. 3 is a front elevation, and Fig. at an endview, of an apparatus -in which my improvements are contained.

Referring to the drawings, the escapement is shown consisting of a camA, keyed upon the main spindle B of a clockwork O, and of a lever-arm D,separately centered and carrying a pin (1, projecting from its side atright angles, and against which the cam A acts. The forward end of theleverD is curved and has a notch D about midway in its face. There isalso attached to it by screws or otherwise one extremity of a spring orpawl E, whose face end projects beyond the curved face at or near thenotch D.

The roller or drum F, which is shown broken off in Fig. 1, has upon itsspindle f a square or polygonal plate H, each side of which is curved tocorrespond with the curved end of the lever D, against which it bears,so as to lock the roller or drum in position after each partialrotation. There is also connected to the lever D one end of a spiral orlike spring G, whose opposite extremity is attached to a fixed part ofthe mechanism at G, and from the plate H on the end of the drum-spindlethere projects a number of pins 77..

The action is as follows: IVhen the wider part of the cam A in itsrotation bears upon the pin (1, projecting from the lever D, the leveris depressed and its spring or pawl E rides over one of the pins h,projecting from the square plate H, the movement continuing until theupper edge of the spring-pawl E is below the said pin h, and the widerpart of the cam A at that moment passing out of contact with the lever Dthe said lever is by the action of the spiral spring G drawn back, andinso moving the spring-pawl E acts to give the drum F a partial rotation.The spring-pawl is hinged or jointed in its length to enable it tooverride the pins hin the downward movement, the jointed forward endwhen the downward motion is completed being forced under one pin h, soas to engage with it by the spring E, attached to the lever D.

Figs. 3 and at are front and end views showing a frame or casecontaining a number of drums F, operated by the improved apparatus.

The drums may be operated, as indicated,

by chain-and-pinion or other gearing from a single clockworkarrangement, or they may be operated in pairs or singly by separateclockwork mechanism constructed as hereinbefore described. When the drumF is placed vertically, the spring-pawl E is hinged at or about themiddle, as shown at Fig. 2.

The drums, which may have any number of sides, may in each case befitted with glazed panes and illuminated at night.

The cam A may be formed with any desired numberof notches and may befitted on any rotating shaft.

Having now described the invention, what I desire to claim and secure byLetters Patcut is- 1. In an apparatus for automatically displayingadvertisements, pictures, and the like, the combination, with one ormore rollers or drums where/on the matter to be displayed is contained,of a motor mechanism, an escapement mechanism including a cam carried bythe main spindle of the motor mechanism and a pivoted lever providedwith a pin with which said cam coacts, and a plate secured to the end ofthe spindle of the display-drum and with which said escapement mechanismco-operates, substantially as set forth.

2. In an apparatus for automatically displaying advertisements,pictures, and the like, the combination, with a drum or roller suitablysupported in a frame or casing and having its spindle provided at oneend with plate H, studded with pins, as h, and a motor mechanism havingits main spindle provided with cam A, of lever-arm D, separatelycentered and provided with a pin, as cl, a spring or pawl secured tolever-arm D, and a spring operating to restore said lever-arm, whendepressed, to the normal position and cause said pawl to give to thedrum a partial rotation, substantially as set forth.

3. The combination, with the supported dru m or roller F and theclockwork mechanism 0, of cam A,keyed upon the main spindle of theclockwork mechanism, the lever-arm D, separately centered and carryingpin cl in its side and curved at its forward end, springorpawl E,secured to the side of said lever-arm, with its face projecting beyondthe curved end of the lever-arm, the studded plate H, secured to the endof the drums spindle and having its sides curved to correspond with thecurved end of the lever-arm D, and spring G, connected to the lever-armD at one end and at its opposite end to the frame of the apparatus,substantially as set forth.

In witness whereof I have hereunto set my hand and seal this lst day ofAugust, 1891.

JOHN STIRLING YULE. [L. s] lVitnesses:

WALLACE FAIRW'EATHER, C. E'., Fel. Inst. Patent Agents, 62 St. VincentStreet, Glasgow.

THOMAS THOMSON, Cashier, 62 S15. Vincent Street, Glasgow.

